Kishenehn Formation Shale Fossil
Kishenehn Formation shale | |
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Age (Ma) | |
Start: | 48.4 |
End: | 38.6 |
System/Period: | Paleogene |
Series/Epoch: | Eocene |
Stage/Age: | Lutetian |
Location | |
Location: | Montana |
Country: | United States |
Coordinates: | 48.4°N, 113.7°W |
Diversity | |
Genera: | 11 |
Species: | 12 |